Incomplete dress posted

Placed an order for a stitched and an unstitched dress. The unstitched dress came with out 3Meter lace that was already mentioned on the website and the packag leaflet in the description section. I contacted them, they sent the lace to a completely wrong address and now they are not sending the lace on my address. As if this was my fault. This mistake of theirs will have to be rectified by my self with my own money. On top will have to deal with this nonsense of looking for the lace in this hot summer weather. All because of a mistake on their behalf in the first place. Because the dress will just not look put together without the lace.